Blind hole pressing rivet nut installed through rivet pulling technology

Abstract

The utility model relates to the technical field of nuts, in particular to a blind hole pressing rivet nut installed through a pull riveting technology, which comprises a blind hole pressing rivet nut body, an arc-shaped boss and an inverted cone-shaped boss, the inverted cone-shaped boss is fixedly connected to the upper surface of the blind hole pressing rivet nut body and communicated with the interior of the blind hole pressing rivet nut body, and the arc-shaped boss is fixedly connected with the upper surface of the blind hole pressing rivet nut body. The arc-shaped boss is fixedly connected with the blind hole pressing rivet nut body and located on the upper surface of the blind hole pressing rivet nut body, a plurality of rectangular banner type spline teeth are arranged on the outer side of the arc-shaped boss, the arc-shaped boss is provided with a plurality of trapezoid grooves, the trapezoid grooves correspond to the rectangular banner type spline teeth in sequence, and the rectangular banner type spline teeth correspond to the trapezoid grooves in sequence. Materials can easily flow to the root of the inverted-cone-shaped boss under the low installation force, the embedding performance is higher, the anti-torsion and anti-push performance is better, the anti-torsion and anti-push device is not affected by installation conditions, the anti-torsion and anti-push device can be used for various materials such as steel plates, aluminum plates and alloys, the production cost is low, and use is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field especially relates to a blind hole pressure riveting nut of pull rivet technology installation. BACKGROUND

[0002] The nut is a kind of fastener widely used in various fields such as civil, commercial, military and the like, especially widely used in large machinery such as automobile, aviation and the like.

[0003] In the automobile field, if the hand tool is nut, and bolt needs to be tightened, in order to prevent the nut from rotating, the blind hole pressure riveting nut with sun flower teeth is usually used, the flower teeth are pressed into the preset hole of sheet metal, the hole diameter of preset hole is slightly smaller than the flower teeth of pressure riveting nut, under the action of pressure, the flower teeth of pressure riveting nut are extruded into plate, plastic deformation is generated on the periphery of preset hole, deformation is extruded into guide groove, thereby locking effect is generated.

[0004] But in the above prior art, the blind hole pressure riveting nut with sun flower teeth can only be used for sheet metal above 1mm, leading to poor applicability, and low stability after riveting. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a blind hole pressure riveting nut of pull rivet technology installation, aiming at solving the technical problem in the prior art that the blind hole pressure riveting nut with sun flower teeth can only be used for sheet metal above 1mm, leading to poor applicability, and low stability after riveting.

[0006] To realize the above-mentioned purpose, a blind hole pressure riveting nut of pull rivet technology installation is adopted in the utility model, which comprises blind hole pressure riveting nut body, arc-shaped boss and inverted taper boss, the inverted taper boss is fixedly connected to the upper surface of the blind hole pressure riveting nut body and communicates with the inside of the blind hole pressure riveting nut body, the arc-shaped boss is fixedly connected with the blind hole pressure riveting nut body and is located on the upper surface of the blind hole pressure riveting nut body, the outer side of the arc-shaped boss is provided with a plurality of rectangular banner type flower teeth, the arc-shaped boss has a plurality of ladder-shaped grooves, and the plurality of ladder-shaped grooves correspond to the plurality of rectangular banner type flower teeth in sequence.

[0007] Among them, the inner and outer sides of the inverted taper boss are provided with first inclined surfaces.

[0008] Among them, the first inclined surface is inclined to the outside of the blind hole pressure riveting nut body.

[0009] Among them, the inverted taper boss gradually thins from bottom to top.

[0010] Among them, the inside of each ladder-shaped groove is provided with a second inclined surface.

[0011] The interior of the blind hole pressure riveting nut body is provided with an internal thread.

[0012] The blind hole pressure riveting nut of the pull riveting process installation can effectively prevent the nut from rotating and increase product performance when being used, the arc-shaped boss can extrude the sheet metal material into the bottom of the inverted conical boss, thereby providing anti-ejection performance, the ladder-shaped groove can form a ladder-shaped step on the riveted sheet metal, thereby enhancing the torsion resistance, the rectangular banner type flower tooth cooperates with the ladder-shaped groove, can more easily penetrate into the sheet metal, reduces the installation force, and can accommodate more sheet metal material, greatly improves the anti-ejection performance, and the method can effectively solve the problems in the prior art that the blind hole pressure riveting nut with the sun flower tooth can only be used for sheet metal of more than 1mm, resulting in poor applicability and low stability after riveting. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Fig. 1 is a structural schematic view of the present application.

[0015] Fig. 2 is a whole structure sectional view of the present application.

[0016] Fig. 3 is a top view of the present application.

[0017] 101-blind hole pressure riveting nut body, 102-arc-shaped boss, 103-inverted conical boss, 104-rectangular banner type flower tooth, 105-ladder-shaped groove, 106-first inclined surface, 107-second inclined surface, 108-internal thread. DETAILED DESCRIPTION

[0018] The embodiments of the present application will be described in detail below, examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0019] Please refer to Figs. 1-3 , wherein Fig. 1 is a structural schematic view of the present application, Fig. 2 is a whole structure sectional view of the present application, Fig. 3 is a top view of the present application.

[0020] The utility model provides a kind of blind hole rivet nut of pull riveting process installation, including blind hole rivet nut body 101, arc boss 102, inverted taper boss 103, the inverted taper boss 103 is fixedly connected on the upper surface of the blind hole rivet nut body 101, and with the inside communication of the blind hole rivet nut body 101, the arc boss 102 with the blind hole rivet nut body 101 is fixedly connected, and located the upper surface of the blind hole rivet nut body 101, the outside of the arc boss 102 is provided with multiple rectangular banner type flower teeth 104, the arc boss 102 has multiple ladder grooves 105, multiple the ladder grooves 105 respectively with multiple the rectangular banner type flower teeth 104 sequentially correspond.

[0021] In the embodiment, the arc boss 102 is pressed into the preset hole position on the sheet metal, which can effectively prevent the nut from rotating and increase the product performance. Meanwhile, the arc boss 102 can extrude the sheet metal material into the bottom of the inverted taper boss 103, thereby providing the anti-ejection performance. The ladder groove 105 can form a ladder step on the riveted sheet metal, thereby enhancing the torsion resistance. The rectangular banner type flower tooth 104 cooperates with the ladder groove 105 to easily penetrate into the sheet metal, reduce the installation force, and accommodate more sheet metal material, thereby greatly improving the anti-ejection performance.

[0022] Further, the inverted taper boss 103 has a first inclined surface 106 on both the inner and outer sides.

[0023] In the embodiment, the first inclined surface 106 forms an inverted taper region of the inverted taper boss 103, thereby accommodating more sheet metal material to enhance the anti-ejection performance and make the sheet metal material flow better to the root of the inverted taper boss 103.

[0024] Further, the first inclined surface 106 is inclined to the outside of the blind hole rivet nut body 101.

[0025] In the embodiment, the first inclined surface 106 forms an inverted taper region of the inverted taper boss 103.

[0026] Further, the inverted taper boss 103 gradually thins from the bottom to the top.

[0027] In the embodiment, more sheet metal material is accommodated to enhance the anti-ejection performance and make the sheet metal material flow better to the root of the inverted taper boss 103.

[0028] Further, the second inclined surface 107 is arranged in the inside of each ladder groove 105.

[0029] In the embodiment, the second slope 107 enables the ladder-shaped groove 105 to accommodate more sheet metal materials, and forms a ladder-shaped step on the riveted sheet metal, thereby enhancing the torsion resistance.

[0030] Further, the interior of the blind hole rivet nut body 101 is provided with an internal thread 108.

[0031] In the embodiment, the adversary bolt is connected and fixed with the blind hole rivet nut body 101 through the internal thread 108.

[0032] The arc-shaped boss 102 is pressed into the pre-set hole position on the sheet metal, which can effectively prevent the nut from rotating and increase the product performance. The arc-shaped boss 102 can extrude the sheet metal material into the bottom of the inverted conical boss 103, thereby providing the anti-ejection performance. The ladder-shaped groove 105 can form a ladder-shaped step on the riveted sheet metal, thereby enhancing the torsion resistance. The rectangular strip-shaped flower tooth 104 cooperates with the ladder-shaped groove 105, which can more easily penetrate into the sheet metal, reduce the installation force, accommodate more sheet metal materials, and greatly improve the anti-ejection performance.

[0033] The above disclosure is only a preferred embodiment of the utility model, and of course cannot limit the scope of the utility model. The person skilled in the art can understand that the above-mentioned embodiment can be implemented in whole or in part, and the equivalent changes made according to the utility model claim still belong to the scope covered by the utility model.

Claims

1. A blind rivet nut installed by a pull-riveting process, characterized in that, it comprises a blind rivet nut body, an arc-shaped boss, and an inverted-cone-shaped boss fixedly connected to the upper surface of the blind rivet nut body and communicating with the interior of the blind rivet nut body, and the arc-shaped boss is fixedly connected to the blind rivet nut body and located on the upper surface of the blind rivet nut body, the outer side of the arc-shaped boss is provided with a plurality of rectangular banner-shaped teeth, and the arc-shaped boss has a plurality of ladder-shaped grooves, and the plurality of ladder-shaped grooves correspond to the plurality of rectangular banner-shaped teeth in sequence.

2. The blind rivet nut installed by a pull-riveting process according to claim 1, characterized in that, the inner and outer sides of the inverted-cone-shaped boss are both provided with first inclined surfaces.

3. The blind rivet nut installed by a pull-riveting process according to claim 2, characterized in that, the first inclined surfaces are inclined toward the outer side of the blind rivet nut body.

4. The blind rivet nut installed by a pull-riveting process according to claim 3, characterized in that, the inverted-cone-shaped boss gradually thins from the bottom to the top.

5. The blind rivet nut installed by a pull-riveting process according to claim 4, characterized in that, the interior of each of the ladder-shaped grooves is provided with a second inclined surface.

6. The blind rivet nut installed by a pull-riveting process according to claim 5, characterized in that, the interior of the blind rivet nut body is provided with an internal thread.

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